Migrate the MY CLUB stat set from the Python proxy to a Rust handler computing
Core-accurate counts: player tiers + rare from the collection, staff/consumable
families from catalog kind+subtype, per-nation buckets via the reverse entity
resolver. Faithful port of fut_club_stats.py (VOCAB + global_counts +
context_rows). Unlike the oracle (stale profile + synthetic consumable shelf),
this reflects the real imported content (incl. the content-gap consumables/staff).
Fail-closed 503 on Core error. club/stats/country|league|team sub-screens remain
Python (documented). Adds adapter club_stats module (5 tests), host handler +
classify arm + resolver subtype_of/rareflag_of, ownership + integration tests;
reachability tool splits club/stats global(migrated) vs context(residual).
funman300
71fcf5e251